The new level added to the HPP building on the Hönggerberg site is a key element in transforming the site into a place where science, economy and the population meet. The structure is highly visible due to its special location and the sculptural effect of the building as a prominent visual landmark. For the added story to the HPP building, the existing structures are re-interpreted and implemented, becoming integrated into the existing urban structure, where it appears as a separate entity. The new structure looks as though it were floating above the old building, with shifted planes point in all four cardinal directions. At night, the illuminated underside underscores the floating character of structure, lending it a lightness. The overhangs give the structure an exciting, new orientation in terms of space and story, and give the building its distinctive shape.